402956969 has 8 divisors (see below), whose sum is σ = 406980000. Its totient is φ = 398950272.

The previous prime is 402956951. The next prime is 402956993. The reversal of 402956969 is 969659204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 402956969 - 2⁸ = 402956713 is a prime.

It is a super-2 number, since 2×402956969² = 324748637731333922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (402956929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48857 + ... + 56505.

It is an arithmetic number, because the mean of its divisors is an integer number (50872500).

Almost surely, 2^402956969 is an apocalyptic number.

It is an amenable number.

402956969 is a deficient number, since it is larger than the sum of its proper divisors (4023031).

402956969 is a wasteful number, since it uses less digits than its factorization.

402956969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8167.

The product of its (nonzero) digits is 1049760, while the sum is 50.

The square root of 402956969 is about 20073.7881078784. The cubic root of 402956969 is about 738.6174386207.

The spelling of 402956969 in words is "four hundred two million, nine hundred fifty-six thousand, nine hundred sixty-nine".